Novel storage tank bottom plate magnetic flux leakage detector

Abstract

The invention belongs to the technical field of nondestructive test, and provides a novel storage tank bottom plate magnetic flux leakage detector. The novel storage tank bottom plate magnetic flux leakage detector comprises a detection host machine; a pair of fixing supports are arranged on the two sides of the detection host machine; the upper part of each fixing support is provided with a fixing plate; each fixing plate is provided with a U-shaped groove; a rotating shaft is arranged on the upper part of each fixing support; and each rotating shaft is connected with a hand push structure. The novel storage tank bottom plate magnetic flux leakage detector is compact in structure design; a folded structure scheme is provided; the novel storage tank bottom plate magnetic flux leakage detector is small in size; operation is simple; and transportation is convenient. In the prior art, when the detection host machine is contacted with steps of overlap welding steel plates, mechanical damage of the bottom of the detection host machine may be caused. The novel storage tank bottom plate magnetic flux leakage detector is provided with hovering functions, detection on the bottom plate withheight change is carried out, so that damage on the detection host machine caused by uneven bottom plate is avoided. In the novel storage tank bottom plate magnetic flux leakage detector, a stroke switch and a solid state relay are adopted, so that electric spark is eliminated, and system safety is increased further.

Description

technical field [0001] The invention belongs to the technical field of non-destructive testing, and in particular relates to a novel magnetic flux leakage detector for the bottom plate of a storage tank. Background technique [0002] As a conventional non-destructive testing technology, magnetic flux leakage testing technology is widely accepted by testing units and storage tank owners. Among them, the "NB / T 47013.1-2015 Nondestructive Testing of Pressure Equipment" standard clearly lists the magnetic flux leakage testing methods. At the same time, in the national standard "GB / T 30578-2014 Risk-Based Inspection and Evaluation of Atmospheric Storage Tanks", magnetic flux leakage detection, as a highly effective detection technology, has been promoted. Especially for the lower part of the storage tank floor, that is, the corrosion thinning on the soil side, the magnetic flux leakage detection technology is currently the most convenient and rapid detection technology. [0003...

AI Technical Summary

Problems solved by technology

[0005] In view of the above problems, the purpose of the present invention is to provide a new type of magnetic flux leakage detector on the bottom of the storage tank, aiming to solve the technical problems of the existing detectors such as excessive volume and inconvenient operation.

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